Micro Test 3
Card Set Information
Micro Test 3
Test 3 Bacteria
What is the 5 kingdom system?
Monera, Protista, Fungi, Plantae and Animalia
What is the 3 kingdom system?
Bacteria, Archea and Eukarya
How does the 5 kingdom subdivide the eukaryotes?
Animalia, fungi and plantae
What is the endosymbiotic theory?
that eukaryotic cells evolved from prokaryotic cells living inside one another
What organelles are involved in the endosymbiotic theory?
Mitochondria and chloroplasts
Why would scientists think that mitochondria and chloroplasts are similar to bacteria?
They contain their own DNA that loops around like that of bacteria, they manufacture many of their own proteins, and they both reproduce by binary fission.
What is a scientific name made of?
The first name (capitalized) is the genus of the organism, the second (not capitalized) is its species
What are systematics and phylogeny the study of?
The evolutionary history of organisms
What two BIG categories can all bacteria be spilt into? What makes these two categories different?
Eubacteria "true bacteria" have peptydoglycan and Archaea lack peptidoglycan and live in extreme conditions
List the types of tests used in modern science to identify bacteria.
Morphilogical characteristics, differential staining, biochemical tests, rapid identification, serology, phage typing, fatty acid profiles, flow cytometry and genetic testing.
What are the major categories of Archea?
Methanogens, halophiles and thermacidophiles
What makes a halophile different from a methanogen?
Halophiles require high concentrations of salt to survive and methanogens are strict anaerobes that produce methane from CO2 and H.
What are some characteristics that can be used to subdivide bacteria into sections?
Mitochondria, cyanobacteria, G-, G+, chloroplasts, thermotoga
How are spirochetes different from vibroid bacteria?
Spirochetes are spiral shaped and vibrios are slighting curved rods
What is the ecological role of nodule-forming (live in plants) and non-nodule (live in soil) forming nitrogen fixers?
Fix atmospheric nitrogen into a form usable by plants
Which bacteria are listed in your notes as causing noscomial infections or infections in hospitalized individuals?
Staph aureus, Pseudomonas aeruginosa, E. coli, Klebsiella pneumoniae, Enterobactor, Candida albicans
Which bacteria causes crown-gall disease? How are these bacteria important in the genetic engineering field?
Agrobacterium tumefaciens, its where genetic engineering began.
What is an enteric? Where do you find them growing? What characteristics do they have?
G- bacteria found in intestinal tracts, ferment glucose
What bacteria can cause food poisioning?
Salmonella, Listeria, E. coli and Campylobacter
Which category of bacteria have the ability to bioluminesce?
Dinoflagellates (red tide)
What problems can anaerobic G- bacteria cause in the human mouth?
Bad breath by excreting wastes some of which are sulfur compounds
Bacteria are important in the nitrogen cycle. Are they also important in the sulfur cycle? Explain.
they decompose and oxidize various products of fermentative degradtions or organic matter
Which type of bacteria are obligate intercellular parasites of eukaryotes?
Which type of bacteria lack cell walls?
Which two genera of G+ cocci are pathogenic?
Streptococcus and Staphylococcus
Which bacteria produce endospores?
What genus bacteria is very useful in food production?
What is the difference between mycoplasmas and mycobacteria?
Mycoplasma refers to a genus of bacteria that lack cell walls and mycobacteria have a very thick, waxy cell wall
What is the difference between the purple, green, and cyanobacteria?
They produce food by photosynthesis
Which category of bacteria are the source of many antibiotics?
What is an extremophile and how are they different from other bacteria?
Microorganisms with the ability to thrive in extreme environments.